According to Fast Company, the plane's GE90 engine is capable of running entirely on sustainable aviation fuel, at least as far as ground testing is concerned, without needing any modifications.

SAF is considered better when compared to traditional kerosene due to the fact that it can have an 80% lower carbon impact throughout its lifespan.

The engine settings used for ground testing were the same as the ones that will be used during the experimental flight, which will imply the take-off, climbing and idling during flight.

Should the experimental flight be successful, we might see SAF-powered planes take off sooner than expected.